Steel and Composite Structures

  • 제23권4호
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  • Pages.421-433
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  • 2017
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  • 1229-9367(pISSN)
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  • 1598-6233(eISSN)
테크노프레스 (Techno-Press)
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Increasing plastic hinge length using two pipes in a proposed web reduced beam section, an experimental and numerical study

  • Zahrai, Seyed M. (School of Civil Engineering, College of Engineering, The University of Tehran) ;
  • Mirghaderi, Seyed R. (School of Civil Engineering, College of Engineering, The University of Tehran) ;
  • Saleh, Aboozar (Department of Civil Engineering, Islamic Azad University Professor Hesabi Branch)
  • 투고 : 2016.10.15
  • 심사 : 2017.01.17
  • 발행 : 2017.03.20
⟨ 이전 논문 다음 논문 ⟩

초록

Experimental and numerical studies of a newly developed Reduced Beam Section (RBS) connection, called Tubular Web RBS connection (TW-RBS) have been recently conducted. This paper presents experimental and numerical results of extending the plastic hinge length on the beam flange to increase energy dissipation of a proposed version of the TW-RBS connection with two pipes, (TW-RBS(II)), made by replacing a part of flat web with two steel tubular web at the desirable location of the beam plastic hinge. Two deep-beam specimens with two pipes are prepared and tested under cyclic loads. Obtained results reveal that the TW-RBS(II) like its type I, increases story drift capacity up to 6% in deep beam much more than that stipulated by the current seismic codes. Based on test results, the proposed TW-RBS(II) helps to dissipate imposed energy up to 30% more than that of the TW-RBS(I) specimens at the same story drift and also reduces demands at the beam-to-column connection up to 30% by increasing plastic hinge length on the beam flange. The TW-RBS(II) specimens are finally simulated using finite element method showing good agreement with experimental results.

키워드

참고문헌

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